Page "I. M. Pei" Paragraph 40

Once the laboratory was built, several problems with its construction became apparent.

Leaks in the roof caused difficulties for researchers, and the shifting of clay soil beneath caused cracks in the buildings which were expensive to repair.

Still, both architect and project manager were pleased with the final result.

Pei refers to the NCAR complex as his " breakout building ", and he remained friends with Roberts until the scientist died in.